Home / 47,945.49-71,923.52-12,887.88

Finding the Fourth Proportional to 47,945.49, 71,923.52 and 12,887.88

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Solution

The fourth proportional to 47,945.49, 71,923.52 and 12,887.88 is: 19,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,945.49 : 71,923.52 = 12,887.88 : x
  2. Step 2: Convert to fraction form
    47,945.49/71,923.52 = 12,887.88/x
  3. Step 3: Cross multiply
    47,945.49x = 71,923.52 × 12,887.88
  4. Step 4: Simplify right side
    47,945.49x = 926,941,694.94
  5. Step 5: Solve for x
    x = 926,941,694.94/47,945.49
  6. Step 6: Final answer
    x = 19,333.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.